Milking-machine.



G. J. E. SUNDBERG L C. J.. J. HAGG.

MILKIN G MACHINE. I APPLIGATION FILED MAR, ze, 190e.,

- 91 7,9105. Patented Apr. 13,'1'909.

'nnrrnn s'rATns f. AfrnNr ernten GEORG JOHAN Encan sUNnBen-G, kor STOCKHOLM, AND `CARL JAKOB JOHAN Hirse, or

HAGARYD,

SWEDEN.

MILKINGTMACHINE.

Specification of Letters Patent.

Patented .April 13, 1909.

Application led Ivarch 26, 1908. Serial No. 423,441.

r7o all Iwhom it may concern;

Be it known that we, GEORG JOHAN EUGEN- SUNDBERG and CARL JAKOB JOHAN HGG, subjects of the King of Swedenl and residents of Stockholm and Hagaryd, Sweden, respectively, have inventednew and useful Inprovements in Milking-Machines, of which the following is a specification, reference be-` ing had to the accompanying drawing, which forms a ,part-of this speciiication.

This invention .relates to a milking machine in,which the teats in the same manner as in several well known milking machines, where the teats are actuated by reciprocat-- 15 ing pistons, or the like, are successively pressed together from the root to the point. The obj ect of the invention is to provide a machine of said kind which willbe of a very simple and cheap construction but nevertheless reliable and effective in its'function.

The invention consists, chiefly, in that the machine, which .in well known manner is provided with a number of teat-cups, has a number of Cam-disks arranged the -one above the other on a common shaft centrally in relation to the saidteat-cups and acting when being rotated directly On'the latter or on protection-pieces placed in front of the teatcups, the said cam-disks being so displaced in relation to each other that each teat-cu is first actuated by the uppermost cam-diei; and then by the next lower oney and so on. Further the cam-disks are of such shape that they release the teat-cups in order commencing atthe top and preferably in such a man! ner that one cam-disk doesnot release a teatcup until the'next lowerone has fully engaged the same teat-cup.

,ln the accompanying drawing we Ahave shown a construction foi-1n of our invention. Figure 1 shows a verticalsection, partly in elevation, and Fig. 2 shows a plan-view of the machine.

Referring to the' drawing, l represents a casing of metal-sheet, or the like, in which are provided tcat-cups 2 of elastic material, suoli ,asindia rubber. The Ateat-cups are 'preferably displaceableperipherically in orde-r that the distance between them may be varied in accordance with the different distances between the teats of thecows. `For the said purpose the teat-cups are secured to sliding pieces 3 arranged on the inner side of the casing 1 and having screw-thresided pins 5 extending through slots 4 in the wallof the casing, the said pins 5 being provide With nuts 6 by'means ,of which theslidingpieces maybe clamped'against the wall of'thecasing and thereby the teat-cups fixed in the desired position.

Centrally in the casing l is rovided a rotatable shaft 7 journaled in a fiearing 8 at' the bottom of the casing l and having on its lower end a bevel-wheel 9 engaging a bevelwheel l() on a shaft 11 provided with a crank 12 by means of which the said shaft 7 can be rotated. For the said' driving-device obviously any otherA suitable drivingdevice may be substituted. The shaft 7 supports 'a' number of cam-disks 13, for instance three, as is shown, which during the rotation of the shaft 7 act `directly on the teat-cups 2 or preferably on protectionpieces 14 infront of the teatlcups. The said protectionlpieces may consist for instance of spring-plates. The cam-disks are, as is s own in Fig.v 2, so displaced in relation to each other that each teat-cup will at first be actuated by the uppermost cam-.disk and' then by the next lower one and so on. The cam-disks release the teat-cups in order commencing from the top but in such a mannen that one cam-disk does not release the teatcup until the next lower one has fully engaged the same teat-cup. i

As is shown in Fig. 2 at least one teat-cup is always pressed together by the cam-disks.

rThis is of course a great inconveniencein a plying the machine tothe teats and for o 4 viating the same only the uppermost camdisk should be rigidly secured to the shaft 7 While the other disks should be rotatable on the shaft within certain limits so that they can be turned into aposition in which they are fully covered by the uppermost camdisk. By this means it will be possible to bring'all the cam-disks into such a position that no teat-cup is engaged bythe cam-disks,

Aprovided that their cams are of less extension in peripherical direction than the distance between two adjacent teat-cups.

Having now described our invention, what we claim as new and desire to secure by Letters Patent is:

1.1111 a milking machine, the combination with a vlurality of rotary cams arranged one above tilie other, means for rotating said cams, and a plurality of vertically disposed, compressible teat-cups supported about the cams 'andxarranged tobe engaged and' compressed by the same. n 2. A milking machine comprising a casing, 5 vertical-central shaft therein, slidlng pieces arranged on and adjustably fixedto the casing,.compressib1e teat cups carried by said pieces and arranged vertically inthe casing, cams mounted one above the other on the it' shaft, and protection pieces attached to the sliding pieces and arranged at the inner sides i of thc teat-cups for the engagement of they GEORG JHAN EUGEN SUNDBERG. CARL JAKOB JOHAN HGG.

Witnesses:

EWALD DELMAR, JOHN DELMAR. 

